
A regenerative biostimulant platform designed to improve nutrient efficiency, strengthen soil biology and increase crop performance.
BF4® is Agritein’s advanced biostimulant platform that combines marine algal extract, amino acid complexes and soil microbial activator to improve plant performance and soil health. Designed for integration into modern fertility programs, BF4® enhances nutrient uptake, stimulates root development and supports consistent yield improvements across a wide range of crops.
Improve Nutrient Efficiency
Helps plants access and utilize nutrients more effectively, maximizing return on fertilizer investment.
Enhance Root Development
Promotes stronger, deeper root systems for better water and nutrient uptake.
Boost Stress Tolerance
Helps crops perform under environmental stress such as heat, drought and nutrient limitations.
Strengthen Soil Biology
Activates beneficial microbial activity in the rhizosphere to improve long-term soil health.
Increase Yield Potential
Supports measurable improvements in crop yield and quality under real-world conditions.
How it Works
BF4® delivers performance through a multi-action approach.
Plant activation. Amino acid complexes stimulate plant metabolic processes, improving growth efficiency and resilience.
Biological soil support. Beneficial microbes enhance nutrient cycling and create a more active soil ecosystem.
Natural growth stimulation. Marine algal extract provides plant hormones and micronutrients that support vigor and development.

Who it’s For
BF4® is built for forward-thinking agricultural professionals focused on improving crop performance, nutrient efficiency and long-term soil health, including:
- Growers seeking higher efficiency and yield
- Agronomists and crop consultants
- Agricultural researchers
- Distributors and retailers looking for innovative inputs
Applications & Use
BF4® is designed to fit into existing farm operations with proven performance.
In-furrow at planting •
Foliar application •
Fertigation systems
Application Guides
What’s Inside
BF4® integrates three core components.

Marine Algal Extract
Natural source of plant growth regulators and micronutrients
Amino Acid Complex
Supports plant metabolism and nutrient assimilation
Soil Microbial Activator
Includes nitrogen-fixing bacteria, beneficial bacteria and fungi to improve soil function
Why Choose BF4®?
Discover how BF4® can fit into your program and delivers measurable results.
Beyond Traditional Fertilizers
Complementing conventional fertilizers, BF4® improves how plants and soils function — delivering immediate performance and long-term benefits.
Built for Regenerative Agriculture
Supports sustainable farming practices by improving soil biology and increasing input efficiencies.
Tank-Mix Compatible
Works in tandem with traditional fertility and crop protection inputs.
Field-Proven Performance
BF4® has been validated through replicated trials across multiple crops and geographies.